Machine element with at least a fitting member pressure-fitted on a shaft and method of making the same
US5419217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/4966
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine element has a shaft and at least a fitting member such as a cam or gear mounted on the shaft by pressure-fit. The fitting member has a bore for receiving the shaft. The shaft is formed with protrusions at least an area of the shaft on which the fitting member is fitted. The protrusions preferably extend continuously or discretely, peripherally or helically on the outer surface of the shaft and have a diameter larger than than the remaining areas of the shaft. The bore of the fitting member is formed with at east an inner chordal surface having a perpendicular from the center of the bore smaller than the radius of the protrusions. The fitting member is configured to be forced onto the protrusions of the shaft with at least one inner chordal surface forming a corresponding outer surface on the protrusions in a shaving and/or deforming operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.